Wearable Ring-Based Sensing Platform for Detecting Chemical Threats

Sempionatto, Juliane R.; Mishra, Rupesh K.; Martin, Adam C.; Tang, Guangda; Nakagawa, Tatsuo; Lu, Xiaolong; Campbell, Alan S.; Lyu, Kay Mengjia; Wang, Joseph

doi:10.1021/acssensors.7b00603

Cited by 89 publications

(94 citation statements)

References 25 publications

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“…3,4 Rapid on-site detection of OPs in the solid, liquid, and vapor states has been demonstrated using wearable sensor systems. [5][6][7][8] However, these examples require a human operator to be put at risk of exposure to hazardous OP compounds. Remote robotic sampling and sensing platforms are needed to avoid placing people in unsafe environments.…”

Section: Introductionmentioning

confidence: 99%

Point-of-use robotic sensors for simultaneous pressure detection and chemical analysis

et al. 2019

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The development of sensors for monitoring hazardous materials in security and environmental applications has been increasing in the last few years. In particular, organophosphates pose a serious health threat that affects the food and agriculture industries. Hence, their rapid on-site detection is highly desired, especially through remote robotic sampling that can minimize the exposure of humans to these hazardous chemicals. To handle sample collection, a robotic manipulator requires tactile feedback, to ensure that no damage will be done to either the robot or the other object in contact due to excessive force. To provide tactile feedback, porous polydimethylsiloxane pressure sensors based on a capacitive mechanism were chosen here, and integrated with enzyme-based electrochemical sensors specific for organophosphate compounds (e.g. methyl paraoxon). This results in a hybrid physical-chemical sensing glove that can simultaneously measure the pressure and chemical target without interference between the two sensors. Our pressure sensors showed 455% relative capacitance change per 10 kPa applied pressure, with an average sensitivity (S) of 0.057 AE 0.004 kPa À1 in the 3-20 kPa range and a maximum sensitivity of 0.30 AE 0.08 kPa À1 in the o0.05 kPa range. The chemical biosensors showed a detection range of 20-180 lM for methyl paraoxon in the liquid phase. We have thus combined low-cost chemical and pressure sensors together on disposable, retrofitting gloves, and demonstrated simultaneous tactile sensing and organophosphate pesticide detection in a point-of-use robotic field platform that is scalable, economical, and adaptable for different security, environmental, and food-safety applications.

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Section: Introductionmentioning

confidence: 99%

Point-of-use robotic sensors for simultaneous pressure detection and chemical analysis

et al. 2019

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“…Wearable tattoo-based or ring-based OP vapor biosensors are subsequently introduced by the same group, in which the SWV module was also used for measurement. [190][191][192] Gas-Phase Hazards: Gas-phase hazardous chemicals will do harm to human body via respiratory system. For example, nitrogen dioxide (NO 2 ) has an effect on the lungs by lining inflammations, which can lead to wheezing, coughing, colds, flu and bronchitis due to lung infection.…”

Section: Chemical Hazards Detectionmentioning

confidence: 99%

Flexible Hybrid Sensors for Health Monitoring: Materials and Mechanisms to Render Wearability

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201902133.Wearable electronics have revolutionized the way physiological parameters are sensed, detected, and monitored. In recent years, advances in flexible and stretchable hybrid electronics have created emergent properties that enhance the compliance of devices to our skin. With their unobtrusive attributes, skin conformable sensors enable applications toward real-time disease diagnosis and continuous healthcare monitoring. Herein, critical perspectives of flexible hybrid electronics toward the future of digital health monitoring are provided, emphasizing its role in physiological sensing. In particular, the strategies within the sensor composition to render flexibility and stretchability while maintaining excellent sensing performance are considered. Next, novel approaches to the functionalization of the sensor for physical or biochemical stimuli are extensively covered. Subsequently, wearable sensors measuring physical parameters such as strain, pressure, temperature, as well as biological changes in metabolites and electrolytes are reported. Finally, their implications toward early disease detection and monitoring are discussed, concluding with a future perspective into the challenges and opportunities in emerging wearable sensor designs for the next few years. Wearable SensorsRecent progress in flexible and stretchable electronic systems has ignited exciting applications in consumer electronics, human computer interactions, augmented reality devices, and electronic skins. [1][2][3] Among these, a significant interest lies in health monitoring, [4][5][6] where vital functions may be measured continuously. Continuous health monitoring is far more superior than conventional healthcare workflow as the conventional approach can only offer snapshots of the physiological condition Figure 3. Material substrates for flexible and stretchable electronics, highlighting the advantages of choices for each material type. a) Common polymeric materials by order of glass transition temperatures. Reproduced with permission. [29] Copyright 2015, Elsevier. b) Schematic representation of crosslinked elastomeric substrates possessing configuration entropy. Reproduced with permission. [22]

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“…Considerable efforts have been made in simplifying wireless potentiostats focusing on minimal energy requirements, providing simple open source hardware and software compatible or integrated with smart mobile phones . Examples of such biosensor ‐ wireless potentiostat devices have been proposed for wound care, monitoring of blood glucose or subcutaneous glucose, subcutaneous uric acid, chemical threats, etc. Making cheaper wireless biosensors operating on low energy Blue Tooth or battery‐less designs powered by wireless energy feeding are competitive engineered alternatives.…”

Section: Biosensors Exploiting Wireless Potentiostatsmentioning

confidence: 99%

Wireless, Battery‐Less Biosensors Based on Direct Electron Transfer Reactions

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Studies of direct electron transfer (DET) between enzymes and electrodes, among other reasons, are aimed at designing the simplest and most efficient biosensor designs. This direction might become especially valuable for the widespread integration of biosensors in Internet-of-Things (IoT) networks. In this Minireview, the simplicity of the design of wireless biosensors based on DET is discussed. It can be concluded that DET allows construction of wireless biosensors, which require no or only a few semiconductor elements. Hopefully, some of these demonstrations will translate into competitive and useful devices strongly promoting biosensing in IoT networks.[a] Prof.

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Wearable Ring-Based Sensing Platform for Detecting Chemical Threats

Cited by 89 publications

References 25 publications

Point-of-use robotic sensors for simultaneous pressure detection and chemical analysis

Point-of-use robotic sensors for simultaneous pressure detection and chemical analysis

Flexible Hybrid Sensors for Health Monitoring: Materials and Mechanisms to Render Wearability

Wireless, Battery‐Less Biosensors Based on Direct Electron Transfer Reactions

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